Question

dado dois pontos a(3, -5) e b (-2, -4) determine a equação dessa reta

Answer 1

A(3,-5) e B(-2,-4)

m = ( yb - ya ) / ( xb - xa ) = ( -4 + 5 ) / ( -2 - 3 ) = 1/-5

y - ya = m ( x - xa )

y + 5 = -1/5 ( x - 3 )

5y + 25 = - x + 3

5y = -x + 3 - 25

x + 5y + 22 = 0